I got this gem of an item for my Nord warrior and stacked the Steed stone with the Lord stone. This way, I can lug around a ton of items and wear heavy armor without worrying about all that affecting my stamina in battle (shield bash and heavy attacks all day) while also getting a bonus defense against physical and magical attacks. A perfect combination for a warrior.

I'm making a brand new character that will be a jack-of-all trades vampire. I want to be ridiculously stealthy and also a pure mage, while also having skills with one-handed and archery (bound sword and bow). This would be a very slow process of leveling him properly, as I've already made three trips to the guardian stones to switch in between the 20% skill increases.

My question is if I get the crown and have 2 stones to use, can I use the Mage stone for the 20% to all magic skills, then the Lover stone for the 15% all skills, and have them stack? So warrior and stealth skills will be at 15% increase, and mage skills will be at 35% increase?

The lovers stone duplicates the sleeping bonus "Lovers Comfort" you get from sleeping with your wife. So there is no reason it wouldn't stack.

Great. I just wanted to make sure, seems like something that could have been overseen by Bethesda or something, or where it'd take the greater of the two but not both (in which case, 5% faster for magic skills wouldn't even be close to worth it)

Either way, there are so many great stone combinations out there and I would always wish there was a possibility to be able to take just one more. Bethesda did wonders with this item.